CVE-2026-29182 Parse Server: Cloud Hooks and Cloud Jobs bypass `readOnlyMasterKey` write restriction
Attackers with the readOnlyMasterKey can bypass write restrictions to modify Cloud Hooks and start Cloud Jobs, enabling data exfiltration.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-29182?
CVE-2026-29182 is a high-severity missing authorization vulnerability in Parseplatform Parse-Server, published on 6 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.4 and 9.4.1-alpha.3, Parse Server's readOnlyMasterKey option allows access with master-level read privileges but is documented to deny all write operations. However, some endpoints incorrectly accept the readOnlyMasterKey for mutating operations. This allows a caller who only holds the readOnlyMasterKey to create, modify, and delete Cloud Hooks and to start Cloud Jobs, which can be used for data exfiltration. Any Parse Server deployment that uses the readOnlyMasterKey option is affected. Note than an attacker needs to know the readOnlyMasterKey to exploit this vulnerability. This issue has been patched in versions 8.6.4 and 9.4.1-alpha.3.
Weakness: CWE-863
Which versions are affected by CVE-2026-29182?
5 open source packages ship an affected version, including parse-server and parse. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
parse-server npm | All versions | 8.6.4 |
parse-server npm | All versions | 8.6.4 |
parse-server npm | From 9.0.0 | 9.4.1-alpha.3 |
parse-server npm | From 9.0.0 | 9.4.1-alpha.3 |
parse Bitnami | All versions | 9.4.1 |
Products include Parseplatform Parse-Server.
How do I fix CVE-2026-29182?
Upgrade parse-server to a fixed version for your release line: 8.6.4 or 9.4.1-alpha.3.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-29182 being exploited?
There is no known exploitation of CVE-2026-29182 in the wild and no public exploit code.
Other vulnerabilities in Parseplatform Parse-Server
- CVE-2026-30966 Parse Server role escalation and CLP bypass via direct `_Join` table write
- CVE-2024-27298 Parse Server literalizeRegexPart SQL Injection
- CVE-2022-24760 Command Injection in Parse server
- CVE-2026-30965 Parse Server session token exfiltration via `redirectClassNameForKey` query parameter
- CVE-2023-36475 Parse Server vulnerable to remote code execution via MongoDB BSON parser through prototype pollution
Sources
Also known as BIT-parse-2026-29182, GHSA-vc89-5g3r-cmhh.